Reviews test files against FXA testing guidelines and produces a prioritized repair plan.
npx skills add https://github.com/mozilla/fxa --skill fxa-test-repair
Please help me install this Agent Skill. Skill: fxa-test-repair Source: https://github.com/mozilla/fxa/tree/main/.claude/skills/fxa-test-repair Command: npx skills add https://github.com/mozilla/fxa --skill fxa-test-repair
Test files in the Mozilla Accounts monorepo often accumulate violations of FXA testing guidelines such as shared mutable state, vague assertions, and over-mocking, which cause flaky or misleading tests. This Skill audits a test file against every rule and produces a prioritized repair plan without modifying any files.
.claude/rules/testing/base.md, plus React component rules for *.test.tsx files.account.spec.ts runs the Skill to get a repair plan flagging shared state across tests and weak toBeTruthy() assertions before opening a pull request.Ask the assistant to review the test file at a given path, for example: run fxa-test-repair on packages/fxa-auth-server/test/account.spec.ts and show me the repair plan.
High-intent search queries and answers about installing and using this skill.
Invoke the Skill with the test file path as an argument, or let it detect recently changed test files via git diff. It reads the file, audits it against every rule in the shared testing guidelines, and returns a prioritized findings table with repair snippets.
No, it never modifies files. It outputs a repair plan with before and after code suggestions for engineer review, since repairs like mock restructuring can change test behavior and require human judgment.
Yes. When the target file matches `*.test.tsx`, it additionally loads the React component testing rules from `.claude/rules/testing/react.md` and audits against those rules alongside the base FXA testing rules.
Findings are classified as High, Medium, or Low severity. High covers issues causing false positives or order-dependent failures, Medium covers reduced test value like vague assertions, and Low covers convention violations that do not affect correctness.
For 16 or more issues, the Skill suggests tackling repairs by rule category rather than line by line, and recommends running the fxa-test-independence validation afterward to confirm nothing regressed.
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